<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      * {
        margin: 0;
        padding: 0;
      }
      body {
        background-color: #333;
      }
      .map {
        position: relative;
        width: 747px;
        height: 617px;
        background: url(./img/map.png) no-repeat center;
        margin: 0 auto;
      }
      .bj {
        position: absolute;
        right: 195px;
        top: 228px;
      }
      .dotted {
        width: 8px;
        height: 8px;
        background-color: #09f;
        border-radius: 50%;
      }
      .bj div[class^='bowen'],
      .tb div[class^='bowen'],
      .gz div[class^='bowen'] {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 8px;
        height: 8px;
        box-shadow: 0 0 12px #09f;
        border-radius: 50%;
        animation: big 1.2s linear infinite;
      }
      .bowen2 {
        animation-delay: 0.4s !important;
      }
      .bowen3 {
        animation-delay: 0.8s !important;
      }
      .tb {
        position: absolute;
        top: 500px;
        right: 82px;
      }
      .gz {
        position: absolute;
        top: 540px;
        right: 188px;
      }
      @keyframes big {
        0% {
        }
        70% {
          width: 40px;
          height: 40px;
          opacity: 1;
        }
        100% {
          width: 80px;
          height: 80px;
          opacity: 0;
        }
      }
    </style>
  </head>
  <body>
    <div class="map">
      <div class="bj">
        <div class="dotted"></div>
        <div class="bowen1"></div>
        <div class="bowen2"></div>
        <div class="bowen3"></div>
      </div>
      <div class="tb">
        <div class="dotted"></div>
        <div class="bowen1"></div>
        <div class="bowen2"></div>
        <div class="bowen3"></div>
      </div>
      <div class="gz">
        <div class="dotted"></div>
        <div class="bowen1"></div>
        <div class="bowen2"></div>
        <div class="bowen3"></div>
      </div>
    </div>
  </body>
</html>
